化学反应工程与工艺
化學反應工程與工藝
화학반응공정여공예
CHEMICAL REACTION ENGINEERING AND TECHNOLOGY
2014年
6期
563-566
,共4页
张云贤%王振东%张斌%孙洪敏%杨为民%李和兴
張雲賢%王振東%張斌%孫洪敏%楊為民%李和興
장운현%왕진동%장빈%손홍민%양위민%리화흥
MCM-22分子筛%哌啶%乙苯%烷基化
MCM-22分子篩%哌啶%乙苯%烷基化
MCM-22분자사%고정%을분%완기화
MCM-22 molecular sieve%piperidine%ethylbenzene%alkylation
以哌啶(PI)为模板剂,在不添加晶化助剂下,采用动态水热晶化法合成MCM-22分子筛,考察了晶化时间、PI和SiO2、OH-和SiO2、SiO2和Al2O3的物质的量之比等对晶化产物的影响,结果表明,PI和SiO2, OH-和SiO2,SiO2和Al2O3的物质的量之比为0.50~0.70,0.09~0.10和30~40,晶化时间48~72 h的条件下,能较好地合成MCM-22分子筛。在苯与乙烯液相烷基化制乙苯反应中,以哌啶为模板剂与采用六亚甲基亚胺为模板剂合成的MCM-22分子筛的催化性能相当。
以哌啶(PI)為模闆劑,在不添加晶化助劑下,採用動態水熱晶化法閤成MCM-22分子篩,攷察瞭晶化時間、PI和SiO2、OH-和SiO2、SiO2和Al2O3的物質的量之比等對晶化產物的影響,結果錶明,PI和SiO2, OH-和SiO2,SiO2和Al2O3的物質的量之比為0.50~0.70,0.09~0.10和30~40,晶化時間48~72 h的條件下,能較好地閤成MCM-22分子篩。在苯與乙烯液相烷基化製乙苯反應中,以哌啶為模闆劑與採用六亞甲基亞胺為模闆劑閤成的MCM-22分子篩的催化性能相噹。
이고정(PI)위모판제,재불첨가정화조제하,채용동태수열정화법합성MCM-22분자사,고찰료정화시간、PI화SiO2、OH-화SiO2、SiO2화Al2O3적물질적량지비등대정화산물적영향,결과표명,PI화SiO2, OH-화SiO2,SiO2화Al2O3적물질적량지비위0.50~0.70,0.09~0.10화30~40,정화시간48~72 h적조건하,능교호지합성MCM-22분자사。재분여을희액상완기화제을분반응중,이고정위모판제여채용륙아갑기아알위모판제합성적MCM-22분자사적최화성능상당。
MCM-22 molecular sieve was synthesized by dynamic hydrothermal crystallization using piperidine(PI) as organic template in the absence of boron. The effects of crystallization time, molar ratios of PI to SiO2, OH-to SiO2, SiO2to Al2O3 on the obtained products were investigated. The results showed that the optimized conditions were molar ratio of PI to SiO2 0.50-0.70, molar ratio of OH- to SiO2 0.09-0.10 and crystallization time of 48-72 h. MCM-22 molecular sieve synthesized using PI as template, exhibited the good performance as same as the one synthesized using hexamethyleneimine as template in liquid phase alkylation reaction of benzene with ethylene.